Simulative Analysis of 40 Gb/s Dispersion Compensated Optical Communication System with NRZ Modulation using Linearly Chirped Fiber Bragg Grating

In this paper, we have proposed the use of linearly chirped fiber Bragg gratings for dispersion compensation of 40Gb/s NRZoptical communication system. The observations are based on the modeling and numerical simulation of optimum dispersion-managed transmission link. Transmission over 750 kilometers has been shown with minimum BER at optimal decision threshold (10-9) by varying the input optical power from 0 to 12 dBm. It has been observed that the system gives the optimum performance at input power 9dBm beyond which the nonlinear effects dominate and deteriorates the signal. Various parameters like BER, Q value, Eye closure penalty have been investigated to obtain the optimum performance.